package com.wjb.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {
    public String paymentInfo_ok(Integer id){
        return "线程池:   "+Thread.currentThread().getName()+"   paymentInfo_ok,id   "+id+"\t"+"O(∩_∩)O哈哈~";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value = "5000")
    })
    public String paymentInfo_TimeOut(Integer id){
        Integer timeNumbe=3;
        try {
            TimeUnit.SECONDS.sleep(timeNumbe);
        }catch (InterruptedException e){
            e.printStackTrace();
        }
        return "线程池:   "+Thread.currentThread().getName()+"   paymentInfo_Timeout,id   "+id+"\t"+"O(∩_∩)O哈哈~"+"  耗时(秒):"+timeNumbe;
    }

    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池:   "+Thread.currentThread().getName()+"   paymentInfo_TimeOutHandler,id   "+id+"\t"+"o(╥﹏╥)o~";
    }

    //=====服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60")//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable(value = "id") Integer id){
        if (id<0){
            throw new RuntimeException("***id 不能为负数!");
        }
        String serialNumber= IdUtil.simpleUUID();
        return Thread.currentThread().getName()+"\t"+"调用成功,流水号:"+serialNumber;
    }
    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id){
        return "id 不能负数，请稍后再试,id:"+id;
    }
}
